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Fr would be Germán or Swiss Francs (pre €).steamman wrote: I found this advert for Marklin 4161 on the internet some time ago. It is from a catalog for the Switzerland market dated 1934 ( although my books all say that Marklin 4161 was produced from 1923-28) and lists the prices for both sizes of model. Marklin 4161/94/11 cost Fr 245, does anyone know what that would be?
I used Tracy tools for some obscure taps but they don’t stock all the different sizes and was quoted £450 for a tap an die set to be made so that’s when I decided to have a go myself :)KevinBtoolmaker wrote: In order to make a metric tap around 1.5 mm I would have to single point the thread on a piece of 1.5 mm diameter tool steel in a lathe capable of doing metric threads then heat treat the steel, draw and then grind the fluted cutting edges. I've made a wide variety of special cutting tools in the past but never a tap that small.
Would you know of a place were I could purchase such tooling? I think I would rather buy them if the cost is reasonable for such tools.